Photoacoustic gas sensing with a commercial external cavity-quantum cascade laser at 10.5 渭m

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• 作者：D. Mammez ; C. Stoeffler ; J. Cousin ; R. Vallon ; M.H. Mammez ; L. Joly ; B. Parvitte ; V. Z茅ninari
• 关键词：External cavity-quantum cascade laser ; Photoacoustic spectrometry ; Carbon dioxide ; Butane
• 刊名：Infrared Physics and Technology
• 出版年：November, 2013
• 年：2013
• 卷：61
• 期：Complete
• 页码：14-19
• 全文大小：1556 K

文摘

We report the implementation of a commercial external cavity-quantum cascade laser emitting at 10.5 渭m in a photoacoustic spectrometer. This spectrometer enables measurements on broad spectral range up to 60 cm^鈭? which means that spectra of complex molecules can be recorded as well as a whole absorption band of a small molecule. The wide tuning range of the source of this photoacoustic spectrometer demonstrates the possibility to detect small and complex molecules such as carbon dioxide and butane.